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/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2005-2017 Andes Technology Corporation
#ifndef __ASM_NDS32_PTRACE_H
#define __ASM_NDS32_PTRACE_H
#include <uapi/asm/ptrace.h>
/*
* If pt_regs.syscallno == NO_SYSCALL, then the thread is not executing
* a syscall -- i.e., its most recent entry into the kernel from
* userspace was not via syscall, or otherwise a tracer cancelled the
* syscall.
*
* This must have the value -1, for ABI compatibility with ptrace etc.
*/
#define NO_SYSCALL (-1)
#ifndef __ASSEMBLY__
#include <linux/types.h>
struct pt_regs {
union {
struct user_pt_regs user_regs;
struct {
long uregs[26];
long fp;
long gp;
long lp;
long sp;
long ipc;
#if defined(CONFIG_HWZOL)
long lb;
long le;
long lc;
#else
long dummy[3];
#endif
long syscallno;
};
};
long orig_r0;
long ir0;
long ipsw;
long pipsw;
long pipc;
long pp0;
long pp1;
long fucop_ctl;
long osp;
};
static inline bool in_syscall(struct pt_regs const *regs)
{
return regs->syscallno != NO_SYSCALL;
}
static inline void forget_syscall(struct pt_regs *regs)
{
regs->syscallno = NO_SYSCALL;
}
static inline unsigned long regs_return_value(struct pt_regs *regs)
{
return regs->uregs[0];
}
extern void show_regs(struct pt_regs *);
/* Avoid circular header include via sched.h */
struct task_struct;
#define arch_has_single_step() (1)
#define user_mode(regs) (((regs)->ipsw & PSW_mskPOM) == 0)
#define interrupts_enabled(regs) (!!((regs)->ipsw & PSW_mskGIE))
#define user_stack_pointer(regs) ((regs)->sp)
#define instruction_pointer(regs) ((regs)->ipc)
#define profile_pc(regs) instruction_pointer(regs)
#endif /* __ASSEMBLY__ */
#endif